Color estimation method for expanding a color image for reproduc

Details Color estimation method for expanding a color image for reproduc Color estimation method for expanding a color image for reproduc

1991-11-22

1994-05-31

Powell, Mark R.

Facsimile and static presentation processing

Natural color facsimile

Color separation

358501, 358518, 358519, 358520, H04N 146, G03F 308

Patent

active

053174267

ABSTRACT:
The invention provides a method of transforming a color image data of a first media (color hardcopy) so as to be reproduced by a second media (color CRT), the color reproducing capabiity of which is larger than that of the first media. The chroma of color image data "T" is compared with a threshold value which is "a" (a <1.0) times of the maximum chroma of the first color gamut of the first media at the lightness "LT" and the hue ".theta.T" of the color image data "T". The chroma "rT" is enlarge in accordance with the comparison result without changing the hue ".theta.T".

REFERENCES:
patent: 4701790 (1987-10-01), Yamada
patent: 4758885 (1988-07-01), Sasaki et al.
patent: 4929978 (1990-05-01), Kanamori et al.
patent: 4959711 (1990-07-01), Hung et al.
patent: 5089884 (1992-02-01), Suzuki et al.
patent: 5121196 (1992-06-01), Hung

Affiliated with

Also associated with

Rating

Color estimation method for expanding a color image for reproduc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color estimation method for expanding a color image for reproduc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color estimation method for expanding a color image for reproduc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1631753